Home / 8,931.36-13,396.32-2,775.36

Finding the Fourth Proportional to 8,931.36, 13,396.32 and 2,775.36

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Solution

The fourth proportional to 8,931.36, 13,396.32 and 2,775.36 is: 4,162.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.36 : 13,396.32 = 2,775.36 : x
  2. Step 2: Convert to fraction form
    8,931.36/13,396.32 = 2,775.36/x
  3. Step 3: Cross multiply
    8,931.36x = 13,396.32 × 2,775.36
  4. Step 4: Simplify right side
    8,931.36x = 37,179,610.68
  5. Step 5: Solve for x
    x = 37,179,610.68/8,931.36
  6. Step 6: Final answer
    x = 4,162.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.